Symmetry energy of fragments produced in multifragmentation

D. Henzlova A.S. Botvina K.-H. Schmidt V. Henzl P. Napolitani 1 M.V. Ricciardi
1 IPNO - Institut de Physique Nucléaire d'Orsay
Abstract : Isospin properties of fragments measured in multifragmentation of $^{136}$Xe and $^{124}$Xe projectiles in mid-peripheral collisions with a lead target at 1 A GeV were studied within the statistical approach describing the liquid-gas nuclear phase transition. By analyzing the isoscaling phenomenon and the mean N-over-Z ratio of the fragments with Z=10-13 we have concluded that the symmetry energy of hot fragments produced at subnuclear densities at high temperatures decreases in comparison with cold nuclei.
Keywords : Symmetry energy Isoscaling Multifragmentation
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Article dans une revue
Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2010, 37, pp.085010. <10.1088/0954-3899/37/8/085010>
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http://hal.in2p3.fr/in2p3-00024375
Contributeur : Michel Lion <>
Soumis le : lundi 18 juillet 2005 - 13:20:53
Dernière modification le : jeudi 20 juillet 2017 - 09:31:05

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D. Henzlova, A.S. Botvina, K.-H. Schmidt, V. Henzl, P. Napolitani, et al.. Symmetry energy of fragments produced in multifragmentation. Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2010, 37, pp.085010. <10.1088/0954-3899/37/8/085010>. <in2p3-00024375>

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